The concept of zero as it relates to ham radio ?

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I was watching this PBS NOVA program titled Zero to Infinity:

source:  https://www.youtube.com/watch?v=6AcOv8D3-pM

One thing that occurred to me as far as zero and ham radio was with Morse code, specifically the difference between dits and dahs.  People usually say a dit is 1/3 the length of a dah (actually they say a dah is 3x the length  of a dit but I still use fractions just to be irritating).

Morse code speed is usually specified as 1.2 / dit length.  

But people ignore the face that Morse code is OOK (On Off Keying).  They forget the OFF part.  A dit is defined as key down for a dit length PLUS key up for another dit length (2 dit lengths in total) AND a dah as being key down for 3 dit lengths and key up for a dit length (4 dit lengths in total).  So a dah isn't 3 times the length of a dit, it's twice the length of a dit.

If you think of dits and dahs this way (especially if programming a computer to decode Morse) then non-standard keying weight isn't as big a problem.

Anyway, I thought this NOVA was a thought provoking program (in other words I didn't fall asleep).

Also, I thought that the derivation of the area of a circle using a pizza cut into smaller and smaller wedges was very clever.  I just remember Pi times the the radius squared :)  But 1/2 the radius times the circumference is the same thing !  Taking it a little further, Pi could be defined from the circumference divided by the radius.  And every ham is familiar with 2 x Pi from the inductive and capacitive reactance formulas.  So relating Pi to a pizza pie was very clever :)

Best Regards,
Chuck, WB9KZY
http://wb9kzy.com/ham.htm